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Effects of heat treatment and sintering additives on thermal conductivity and electrical resistivity in fine-grained SiC ceramics

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Abstract

The effects of heat treatment and sintering additives on the thermal conductivity and electrical resistivity of fine-grained SiC materials were investigated. The thermal conductivity and the electrical resistivity of dense SiC materials were measured at room temperature by a laser flash technique and a current-voltage method, respectively. The results indicated that the thermal conductivity and electrical resistivity of the SiC materials were dependent on the sintering additives and the resultant microstructure. Annealed materials with oxide additives developed microstructures consisting of elongated grains of various α/β–SiC polytypes. In contrast, annealed materials with oxynitride additives had microstructures consisting of fine equiaxed grains entirely of β–SiC phase. For the annealed materials with oxide additives the observed thermal conductivity was over 110 W/mK. For the annealed materials with oxynitride additives the observed value was 47 W/mK. The electrical resistivity of a hot-pressed material with oxide sintering additives decreased after annealing. For annealed materials with oxynitride additives, the electrical resistivity was even lower. High-resolution electron microscopy revealed a thin amorphous phase along the grain boundaries. Energy dispersive x-ray spectroscopy results showed that there was segregation of both Al and O atoms and a very small amount of Y atoms at grain boundaries. The results indicated that the chemistry and structure of the grain boundary has significant influence on thermal and electrical properties in SiC.

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References

  1. N.P. Padture and B.R. Lawn, J. Am. Ceram. Soc. 77, 2518 (1994).

    Article  CAS  Google Scholar 

  2. N.P. Padture, J. Am. Ceram. Soc. 77, 519 (1994).

    Article  CAS  Google Scholar 

  3. G-D. Zhan, M. Mitomo, and Y-W. Kim, J. Am. Ceram. Soc. 82, 2924 (1999).

    Article  CAS  Google Scholar 

  4. G-D. Zhan, R-J. Xie, M. Mitomo, and Y-W. Kim, J. Am. Ceram. Soc. 84, (2001).

  5. K. Moore and R.J. Trew, MRS Bull. 22(3), 50 (1997).

    Article  CAS  Google Scholar 

  6. R.C. Glass, D. Henshall, V.F. Tsvetkov, and C.H. Carter, Jr., MRS Bull. 22(3), 30 (1997).

    Article  CAS  Google Scholar 

  7. D.J. Larkin, MRS Bull. 22(3), 36 (1997).

    Article  CAS  Google Scholar 

  8. M.A. Capano and R.J. Trew, MRS Bull. 22(3), 19 (1997).

    Article  CAS  Google Scholar 

  9. Y. Takeda, K. Nakamura, K. Maeda, and Y. Matsushita, J. Am. Ceram. Soc. 70, C-266 (1987).

    Article  Google Scholar 

  10. Y. Takeda, Ceram. Bull. 67, 1961 (1988).

    CAS  Google Scholar 

  11. S. Ogihara, K. Maeda, Y. Takeda, and K. Nakamura, J. Am. Ceram. Soc. 68, C-16 (1985).

    Article  CAS  Google Scholar 

  12. T. Sakai and T. Aikawa, J. Am. Ceram. Soc. 71, C-7 (1988).

    Article  CAS  Google Scholar 

  13. W. Kowbel, F. Gao, J.C. Withers, and G.E. Youngblood, J. Mater. Syn. And Proc. 4, 195 (1996).

    CAS  Google Scholar 

  14. T. Kinoshita and S. Munekawa, Acta. Mater. 45, 2001 (1997).

    Article  CAS  Google Scholar 

  15. D-M. Liu and B.W. Lin, Ceram. Inter. 22, 407 (1996).

    Article  CAS  Google Scholar 

  16. M. Landon and F. Thevenot, J. Europ. Ceram. Soc. 8, 271 (1991).

    Article  CAS  Google Scholar 

  17. G-D. Zhan, M. Mitomo, R-J. Xie, and A.K. Mukherjee, J. Am. Ceram. Soc. 84, 2448 (2001).

    Article  CAS  Google Scholar 

  18. G-D. Zhan, M. Mitomo, H. Tanaka, and Y.W. Kim, J. Am. Ceram. Soc. 83, 1369 (2000).

    Article  CAS  Google Scholar 

  19. G-D. Zhan, Y. Ikuhara, M. Mitomo, R-J. Xie, T. Sakuma, and A.K. Mukherjee, J. Am. Ceram. Soc. 85, 430 (2002).

    Article  CAS  Google Scholar 

  20. Y-W. Kim, M. Mitomo, and G-D. Zhan, J. Mater. Res. 14, 4291 (1999).

    Article  CAS  Google Scholar 

  21. R.E. Loehman, J. Am. Ceram. Soc. 62, 491 (1979).

    Article  CAS  Google Scholar 

  22. S. Sakka, J. Non-Cryst. Solids 181, 215 (1995).

    Article  CAS  Google Scholar 

  23. M. Mitomo, H. Hirotsuru, H. Suematsu, and T. Nishimura, J. Am. Ceram. Soc. 78, 211 (1995).

    Article  CAS  Google Scholar 

  24. H. Tanaka and N. Iyi, J. Ceram. Soc. Jpn. 101, 1313 (1993).

    Article  CAS  Google Scholar 

  25. J. Ruska, L.J. Gauckler, J.L. Lorenz, and H.U. Rexer, J. Mater. Sci. 14, 2013 (1979).

    Article  CAS  Google Scholar 

  26. Y-W. Kim and M. Mitomo, J. Am. Ceram. Soc. 82, 2731 (1999).

    Article  CAS  Google Scholar 

  27. http://www.ceramics.nist.gov/srd/summary/scdscs.htm (2001).

  28. http://www.ceradyne.com/dtsic.htm (2001).

  29. http://www.cvdmaterials.com/sicprop1.htm (2001).

  30. A.K. Collins, M.A. Pickering, and R.L. Taylor, J. App. Phys. 68, (1990).

  31. W.S. Seo, C.H. Pai, K. Koumoto, and H. Yanagida, Solid State Phenomena 25&26, 133 (1992).

    Article  Google Scholar 

  32. H-W. Jun, H-W. Lee, G-H. Kim, H-S. Song, and B-H. Kim, Ceram. Eng. Sci. Proc. 18, 487 (1997).

    Article  CAS  Google Scholar 

  33. M. Nader, F. Aldinger, and M.J. Hoffmann, J. Mater. Sci. 34, 1197 (1999).

    Article  CAS  Google Scholar 

  34. G-D. Zhan, M. Mitomo, Y-W. Kim, R-J. Xie, and A.K. Mukherjee, J. Mater. Res. 16, 2189 (2001).

    Article  CAS  Google Scholar 

  35. Y.A. Vodakov, G.A. Lomakina, E.N. Mokhov, V.G. Oding, and E.I. Padovanova, Sov. Phys. Solid State 20, 258 (1978).

    Google Scholar 

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Authors and Affiliations

  1. Department of Chemical Engineering and Materials Science, University of California, Davis, California, 95616, USA

    Guo-Dong Zhan & Amiya K. Mukherjee

  2. National Institute for Materials Science, Namiki 1-1, Tsukuba-shi, Ibaraki, 305, Japan

    Mamoru Mitomo

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  1. Guo-Dong Zhan
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  2. Mamoru Mitomo
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  3. Amiya K. Mukherjee
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Correspondence to Guo-Dong Zhan.

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Zhan, GD., Mitomo, M. & Mukherjee, A.K. Effects of heat treatment and sintering additives on thermal conductivity and electrical resistivity in fine-grained SiC ceramics. Journal of Materials Research 17, 2327–2333 (2002). https://doi.org/10.1557/JMR.2002.0341

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  • DOI: https://doi.org/10.1557/JMR.2002.0341

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